Hi I can’t answer you question but I just want you to know that you shouldn’t stress and to take a deep breath
He was taking away power from the Senate and wanted to become a single emperor who would rule everything. They disliked this because they would lose their status and wealth and wanted to stop him in order to keep being where they are and remain as powerful senate members. They led the opposition in secrecy.
La Monarquía Hispánica —o Monarquía Católica— fue durante toda esa época la mayor potencia de Europa. Durante los llamados Austrias mayores —Carlos I y Felipe II—, alcanzó el apogeo de su influencia y poder.
hope it helps.